86501338577 has 2 divisors, whose sum is σ = 86501338578. Its totient is φ = 86501338576.

The previous prime is 86501338541. The next prime is 86501338579. The reversal of 86501338577 is 77583310568.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59602386496 + 26898952081 = 244136^2 + 164009^2 .

It is a cyclic number.

It is not a de Polignac number, because 86501338577 - 2⁸ = 86501338321 is a prime.

It is a super-2 number, since 2×86501338577² (a number of 23 digits) contains 22 as substring.

Together with 86501338579, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (86501338579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43250669288 + 43250669289.

It is an arithmetic number, because the mean of its divisors is an integer number (43250669289).

Almost surely, 2^86501338577 is an apocalyptic number.

It is an amenable number.

86501338577 is a deficient number, since it is larger than the sum of its proper divisors (1).

86501338577 is an equidigital number, since it uses as much as digits as its factorization.

86501338577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4233600, while the sum is 53.

The spelling of 86501338577 in words is "eighty-six billion, five hundred one million, three hundred thirty-eight thousand, five hundred seventy-seven".